CA2144366A1 - Methode pour purifier les gaz d'echappement provenant d'un moteur a combustion interne - Google Patents

Methode pour purifier les gaz d'echappement provenant d'un moteur a combustion interne

Info

Publication number
CA2144366A1
CA2144366A1 CA002144366A CA2144366A CA2144366A1 CA 2144366 A1 CA2144366 A1 CA 2144366A1 CA 002144366 A CA002144366 A CA 002144366A CA 2144366 A CA2144366 A CA 2144366A CA 2144366 A1 CA2144366 A1 CA 2144366A1
Authority
CA
Canada
Prior art keywords
catalyst
exhaust gas
iridium
metal
carrier
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Abandoned
Application number
CA002144366A
Other languages
English (en)
Inventor
Takashi Itoh
Yukio Kosaki
Kazuhiko Shiokawa
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
NE Chemcat Corp
Original Assignee
NE Chemcat Corp
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by NE Chemcat Corp filed Critical NE Chemcat Corp
Priority to EP95103486A priority Critical patent/EP0730900A1/fr
Priority to CA002144366A priority patent/CA2144366A1/fr
Publication of CA2144366A1 publication Critical patent/CA2144366A1/fr
Priority to US08/874,484 priority patent/US5997830A/en
Abandoned legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
    • B01D53/34—Chemical or biological purification of waste gases
    • B01D53/92—Chemical or biological purification of waste gases of engine exhaust gases
    • B01D53/94—Chemical or biological purification of waste gases of engine exhaust gases by catalytic processes
    • B01D53/9445—Simultaneously removing carbon monoxide, hydrocarbons or nitrogen oxides making use of three-way catalysts [TWC] or four-way-catalysts [FWC]
    • B01D53/945—Simultaneously removing carbon monoxide, hydrocarbons or nitrogen oxides making use of three-way catalysts [TWC] or four-way-catalysts [FWC] characterised by a specific catalyst
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
    • B01D53/34—Chemical or biological purification of waste gases
    • B01D53/92—Chemical or biological purification of waste gases of engine exhaust gases
    • B01D53/94—Chemical or biological purification of waste gases of engine exhaust gases by catalytic processes
    • B01D53/9404—Removing only nitrogen compounds
    • B01D53/9409—Nitrogen oxides
    • B01D53/9413—Processes characterised by a specific catalyst
    • B01D53/9418—Processes characterised by a specific catalyst for removing nitrogen oxides by selective catalytic reduction [SCR] using a reducing agent in a lean exhaust gas
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
    • B01D53/34—Chemical or biological purification of waste gases
    • B01D53/92—Chemical or biological purification of waste gases of engine exhaust gases
    • B01D53/94—Chemical or biological purification of waste gases of engine exhaust gases by catalytic processes
    • B01D53/9459—Removing one or more of nitrogen oxides, carbon monoxide, or hydrocarbons by multiple successive catalytic functions; systems with more than one different function, e.g. zone coated catalysts
    • B01D53/9463—Removing one or more of nitrogen oxides, carbon monoxide, or hydrocarbons by multiple successive catalytic functions; systems with more than one different function, e.g. zone coated catalysts with catalysts positioned on one brick
    • B01D53/9472—Removing one or more of nitrogen oxides, carbon monoxide, or hydrocarbons by multiple successive catalytic functions; systems with more than one different function, e.g. zone coated catalysts with catalysts positioned on one brick in different zones
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J23/00—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00
    • B01J23/38—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00 of noble metals
    • B01J23/40—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00 of noble metals of the platinum group metals
    • B01J23/46—Ruthenium, rhodium, osmium or iridium
    • B01J23/468—Iridium
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J35/00—Catalysts, in general, characterised by their form or physical properties
    • B01J35/19—Catalysts containing parts with different compositions
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2251/00—Reactants
    • B01D2251/20—Reductants
    • B01D2251/208—Hydrocarbons
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2255/00—Catalysts
    • B01D2255/10—Noble metals or compounds thereof
    • B01D2255/102—Platinum group metals
    • B01D2255/1021—Platinum
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2255/00—Catalysts
    • B01D2255/10—Noble metals or compounds thereof
    • B01D2255/102—Platinum group metals
    • B01D2255/1028—Iridium
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2255/00—Catalysts
    • B01D2255/90—Physical characteristics of catalysts
    • B01D2255/92—Dimensions
    • B01D2255/9202—Linear dimensions
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2255/00—Catalysts
    • B01D2255/90—Physical characteristics of catalysts
    • B01D2255/92—Dimensions
    • B01D2255/9207—Specific surface
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02C—CAPTURE, STORAGE, SEQUESTRATION OR DISPOSAL OF GREENHOUSE GASES [GHG]
    • Y02C20/00—Capture or disposal of greenhouse gases
    • Y02C20/10—Capture or disposal of greenhouse gases of nitrous oxide (N2O)
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T10/00—Road transport of goods or passengers
    • Y02T10/10—Internal combustion engine [ICE] based vehicles
    • Y02T10/12—Improving ICE efficiencies

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Health & Medical Sciences (AREA)
  • Biomedical Technology (AREA)
  • Environmental & Geological Engineering (AREA)
  • Analytical Chemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Combustion & Propulsion (AREA)
  • Materials Engineering (AREA)
  • Organic Chemistry (AREA)
  • Exhaust Gas Treatment By Means Of Catalyst (AREA)
  • Catalysts (AREA)
CA002144366A 1995-03-09 1995-03-10 Methode pour purifier les gaz d'echappement provenant d'un moteur a combustion interne Abandoned CA2144366A1 (fr)

Priority Applications (3)

Application Number Priority Date Filing Date Title
EP95103486A EP0730900A1 (fr) 1995-03-09 1995-03-10 Procédé pour purifier les gaz d'échappement d'un moteur à combustion interne
CA002144366A CA2144366A1 (fr) 1995-03-09 1995-03-10 Methode pour purifier les gaz d'echappement provenant d'un moteur a combustion interne
US08/874,484 US5997830A (en) 1995-03-09 1997-06-13 Method of purifying exhaust gas from internal combustion engine

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
US40112295A 1995-03-09 1995-03-09
EP95103486A EP0730900A1 (fr) 1995-03-09 1995-03-10 Procédé pour purifier les gaz d'échappement d'un moteur à combustion interne
CA002144366A CA2144366A1 (fr) 1995-03-09 1995-03-10 Methode pour purifier les gaz d'echappement provenant d'un moteur a combustion interne
US08/874,484 US5997830A (en) 1995-03-09 1997-06-13 Method of purifying exhaust gas from internal combustion engine

Publications (1)

Publication Number Publication Date
CA2144366A1 true CA2144366A1 (fr) 1996-09-11

Family

ID=34222428

Family Applications (1)

Application Number Title Priority Date Filing Date
CA002144366A Abandoned CA2144366A1 (fr) 1995-03-09 1995-03-10 Methode pour purifier les gaz d'echappement provenant d'un moteur a combustion interne

Country Status (3)

Country Link
US (1) US5997830A (fr)
EP (1) EP0730900A1 (fr)
CA (1) CA2144366A1 (fr)

Families Citing this family (30)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6087295A (en) * 1992-12-14 2000-07-11 Asec Manufacturing Reduction of NOx in the exhaust gases from internal combustion engines containing excess oxygen
DE19721440A1 (de) * 1997-05-21 1998-11-26 Degussa Verfahren zur Reinigung eines mageren Abgases und Katalysatorsystem hierfür
FR2765492B1 (fr) * 1997-07-03 1999-09-17 Rhodia Chimie Sa Procede de traitement de gaz pour la reduction des emissions des oxydes d'azote utilisant une composition catalytique avec un support a base de silice et d'oxyde de titane
AR019182A1 (es) * 1998-07-04 2001-12-26 Degussa Huls Aktiengesellscahft Catalizador para reduccion de oxidos de nitrogeno en atmosfera oxidante y reductora, procedimiento para la preparacion de un catalizador , y empleo delcatalizador.
JP2000027625A (ja) * 1998-07-09 2000-01-25 Honda Motor Co Ltd 内燃機関の排気ガス浄化装置
US6634168B1 (en) * 1998-10-19 2003-10-21 Nissan Motor Co., Ltd. Exhaust gas purification system
JP2000237593A (ja) * 1999-02-23 2000-09-05 Nikki Chemcal Co Ltd 窒素酸化物除去用触媒および窒素酸化物除去方法
US6667017B2 (en) 1999-10-15 2003-12-23 Abb Lummus Global, Inc. Process for removing environmentally harmful compounds
WO2001028665A1 (fr) * 1999-10-15 2001-04-26 Abb Lummus Global, Inc. Conversion d'oxydes d'azote en presence d'un catalyseur sur support a structure de type a mailles
US6670296B2 (en) * 2001-01-11 2003-12-30 Delphi Technologies, Inc. Alumina/zeolite lean NOx catalyst
US6455463B1 (en) * 2001-03-13 2002-09-24 Delphi Technologies, Inc. Alkaline earth/transition metal lean NOx catalyst
US6624113B2 (en) * 2001-03-13 2003-09-23 Delphi Technologies, Inc. Alkali metal/alkaline earth lean NOx catalyst
US7390768B2 (en) * 2002-01-22 2008-06-24 The United States Of America As Represented By The Administrator Of The National Aeronautics And Space Administration Stabilized tin-oxide-based oxidation/reduction catalysts
US6903051B2 (en) * 2002-04-12 2005-06-07 Corning Incorporated In situ theta alumina coated monolithic catalyst supports
US7345007B2 (en) * 2002-06-24 2008-03-18 Tanaka Kikinzoku Kogyo K.K. Catalyst for selective oxidation of carbon monoxide in reformed gas
US20060178263A1 (en) * 2003-12-05 2006-08-10 Kiyoshi Tatsuhara Carbon material and flue gas treatment apparatus
US7481983B2 (en) 2004-08-23 2009-01-27 Basf Catalysts Llc Zone coated catalyst to simultaneously reduce NOx and unreacted ammonia
JP4857570B2 (ja) * 2005-02-14 2012-01-18 株式会社日立製作所 触媒構造体とその製造方法
JP2006223915A (ja) * 2005-02-15 2006-08-31 Hitachi Ltd 触媒構造体および触媒を備えた排ガス処理システム
JP2006281033A (ja) * 2005-03-31 2006-10-19 Mazda Motor Corp 排気ガス用浄化触媒
US7803338B2 (en) 2005-06-21 2010-09-28 Exonmobil Research And Engineering Company Method and apparatus for combination catalyst for reduction of NOx in combustion products
US7743602B2 (en) 2005-06-21 2010-06-29 Exxonmobil Research And Engineering Co. Reformer assisted lean NOx catalyst aftertreatment system and method
US20070184974A1 (en) * 2006-02-06 2007-08-09 Bates Stephen C High temperature metal-on-oxide-ceramic catalysts
US9205376B2 (en) 2011-12-22 2015-12-08 Continental Automotive Systems, Inc. Automotive anti-contamination system
ES2621885T3 (es) * 2013-12-11 2017-07-05 Hirtenberger Aktiengesellschaft Procedimiento para el diagnóstico de un objeto así como aparato para ello
US8883102B1 (en) * 2014-01-14 2014-11-11 Ford Global Technologies, Llc Methods for controlling nitrous oxide emissions
JP6173951B2 (ja) * 2014-03-11 2017-08-02 国立大学法人信州大学 層状イリジウム酸塩及び層状イリジウム酸並びに酸化イリジウムナノシートの製造方法
GB2535466A (en) * 2015-02-16 2016-08-24 Johnson Matthey Plc Catalyst with stable nitric oxide (NO) oxidation performance
JP6815783B2 (ja) * 2016-07-29 2021-01-20 三菱重工業株式会社 脱硝触媒の製造方法
EP3782727A1 (fr) * 2019-08-20 2021-02-24 Umicore Ag & Co. Kg Catalyseur permettant de réduire les émissions d'ammoniaque

Family Cites Families (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3978193A (en) * 1974-01-29 1976-08-31 Gould Inc. Method and apparatus for treating exhaust gases
CA1073363A (fr) * 1975-11-24 1980-03-11 Haren S. Gandhi Catalyseur sectionne a trois voies
US4678770A (en) * 1985-01-31 1987-07-07 Engelhard Corporation Three-way catalyst for lean exhaust systems
JPH02258061A (ja) * 1989-03-30 1990-10-18 Osaka Gas Co Ltd ＮＯｘ分解触媒、及び、その触媒を利用した燃焼装置
KR100201748B1 (ko) * 1990-05-28 1999-06-15 사또 다께오 배기가스로부터 질소산화물을 제거하는 방법
JP2887984B2 (ja) * 1991-09-20 1999-05-10 トヨタ自動車株式会社 内燃機関の排気浄化装置
DE4206699C2 (de) * 1992-03-04 1996-02-01 Degussa NO¶x¶-Verminderung im mageren Abgas von Kraftfahrzeugmotoren
JPH0631173A (ja) * 1992-07-10 1994-02-08 N E Chemcat Corp 排気ガス浄化用触媒及び排気ガスの浄化方法
JP3300054B2 (ja) * 1992-09-30 2002-07-08 マツダ株式会社 排気ガス浄化用触媒
DE69321093T2 (de) * 1993-01-08 1999-02-25 Ford-Werke Ag, 50735 Koeln Zweistufiges katalysator System für einem Verbrennungsmotor
DE69409891T2 (de) * 1993-02-16 1998-09-10 Mitsubishi Heavy Ind Ltd Katalysator zur abgasreinigung
US5518976A (en) * 1993-07-09 1996-05-21 N. E. Chemcat Corporation Catalyst for purifying exhaust gas and method for purifying exhaust gas

Also Published As

Publication number Publication date
US5997830A (en) 1999-12-07
EP0730900A1 (fr) 1996-09-11

Similar Documents

Publication Publication Date Title
US5997830A (en) Method of purifying exhaust gas from internal combustion engine
JP5526410B2 (ja) 排ガス中の窒素酸化物除去方法
US5821190A (en) Catalyst comprising iridium, alkaline metal, alkaline earth or rare earth metal, and metal carbide or metal nitride
CA2286379C (fr) Catalyseur permettant de purifier les gaz d'echappement de moteurs a melange pauvre
CA2057634A1 (fr) Catalyseur pour la purification des gaz d'echappement
CA2079415A1 (fr) Catalyseur d'epuration des gaz d'echappement et methode d'epuration de ces gaz
US20240075466A1 (en) One-Pot Synthesis of Transition Metal-Promoted Chabazites
US6528031B1 (en) Method for preparing noble metal-supported zeolite catalyst for catalytic reduction of nitrogen oxide
EP1337330A2 (fr) Catalyseur et procede de reduction catalytique d'oxydes d'azote
CN113710360B (zh) 快速合成含有具有afx结构的沸石和用于选择性nox还原的至少一种过渡金属的催化剂
US6641788B1 (en) Absorbent for a hydrocarbon, and exhaust gas-purifying catalyst
EP0633052B1 (fr) Catalyseur pour purifier des gaz d'échappement et méthode pour purifier des gaz d'échappement
JPH11216358A (ja) 炭化水素吸着剤及び排ガス浄化触媒
JPH0661427B2 (ja) 窒素酸化物の除去方法
JP3219480B2 (ja) 排気ガス処理方法及び触媒
JPH07155555A (ja) 内燃機関排気ガスの浄化方法
JPH05305240A (ja) 排気ガス浄化用触媒
JP4290391B2 (ja) 窒素酸化物を接触的に除去するための方法とそのための装置
JP2000015104A (ja) 排気ガス浄化用触媒及び排気ガス浄化方法
JPH0824642A (ja) 脱硝触媒の製造方法およびこれにより得られた触媒による脱硝方法
JPH1157485A (ja) 排気ガス浄化触媒及びこれを用いた浄化方法
JPH09168724A (ja) 窒素酸化物の除去方法
JPH10151325A (ja) 排気ガス浄化方法
JPH0768181A (ja) 排気ガスの浄化用触媒および浄化方法
JPH0824645A (ja) 脱硝触媒およびそれを用いた脱硝方法

Legal Events

Date Code Title Description
FZDE Discontinued